Q. No.SNP which is pronounced as "snips” stands for:
1. Small nuclear protein
2. Single nucleotide particle
3. Single nucleotide polymorphism
4. Small nicking points
The length of E. coli DNA and length of DNA in a human 2N cell is:
1. 1.36 mm and 2.2 m respectively
2. 1.36 mm and 2.2 mm respectively
3. 1.3 ìm and 2.2 ìm respectively
4. 1.36 cm and 2.2 cm respectively
Identify the incorrectly matched pair:
| Organism | Length of DNA |
| 1. Bacteriophage ϕ 174 | 5386 base pairs |
| 2. Bacteriophage Lambda | 48502 base pairs |
| 3. Escherichia coli | 4.6 X 10^6 base pairs |
| 4. Human beings | 3.3 X 10^9 base pairs |
Which of the following would be nucleoside found only in RNA?
1. Thymidine
2. Cytidine
3. Uridine
4. Adenosine
In a strand of a nucleic acid. Two nucleotides are linked together by:
1. 3’ – 5’ phosphodiester bond
2. 5’ – 3’ phosphodiester bond
3. 2’ – 5’ phosphodiester bond
4. 3’ – 1’ phosphodiester bond
What is another name for thymine?
1. 5 – bromouracil
2. 3 – bromouracil
3. 3 – methyl uracil
4. 5 – methyl uracil
Watson and Crick based their model of DNA on X-ray diffraction data produced by:
1. Hershey and Chase
2. Marie Curie and Pierre Curie
3. Franklin and Wilkins
4. Meselson and Stahl
In prokaryotes:
1. A typical nucleus is not seen and DNA is scattered throughout the cell
2. A typical nucleus may sometimes be present and DNA is scattered throughout a cell
3. A typical nucleus is not seen but DNA is not scattered throughout the cell
4. A typical nucleus may sometimes be present but DNA is not scattered throughout the cell
Histones are rich in amino acids:
1. Arginine and Lysine
2. Argine and Leucine
3. Arginine and Isoleucine
4. Aspartate and Glutamate
A typical nucleosome unit consists of about:
1. 60 base pairs
2. 140 base pairs
3. 200 base pairs
4. 400 base pairs
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